The cluster NGC 6520 and the dark cloud Barnard 86 in the constellation of Sagittarius

This chart shows the rich constellation of Sagittarius (The Archer), which includes the centre of the Milky Way and many star clusters and nebulae. Most of the stars that can be seen in a dark sky with the unaided eye are marked. The location of the star cluster NGC 6520 and its neighbouring dark cloud Barnard 86 is indicated with a red circle.